Zenith El Primero Sub Sea Pilot vintage wristwatch , 1970s
, in steel bicompax chronograph, ref. 01-0190-415, 40 mm round case. black dial with luminescent indexes, three subdials for the chronograph, date display between 4 and 5 o'clock, rotating bezel, mechanical movement with automatic winding, caliber 3019 PHC, steel bracelet with folding clasp, signed case, dial and movement
